Anyone with a 17HMR H+R sportster out there?

What rounds do you have the best groups with and what suits what varmints? I will be shooting rabbits, crows, pigeons, parrots and maybe larger stuff like foxes and cats.

I ordered one in today, hoping to have it by the start of next week. Will put a nikko stirling 3-9x42 on it as its the same one that is on my 77/22hornet- I really like it.

Thanks